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Alternative forms[edit]


From French acoustique, from Ancient Greek ἀκουστικός (akoustikós, auditory), from Proto-Indo-European *h₂ḱh₂owsyéti (to be sharp-eared), from *h₂eḱ- (sharp) + *h₂ows- (ear) + *yé- (denominative suffix).


  • IPA(key): /əˈkuːstɪk/
  • (file)


acoustic (not comparable)

  1. Pertaining to the sense of hearing, the organs of hearing, or the science of sounds; auditory.
  2. (music) Naturally producing or produced by an instrument without electrical amplification, as an acoustic guitar or acoustic piano.

Derived terms[edit]

  • acoustic duct (the auditory duct, or external passage of the ear)
  • acoustic telegraph (a telegraph making audible signals; a telephone, notably used on ships)
  • acoustic vessels (brazen tubes or vessels, shaped like a bell, used in ancient theaters to propel the voices of the actors, so as to render them audible to a great distance)
  • Translations[edit]

    The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout § Translations.


    acoustic (plural acoustics)

    1. (medicine) A medicine or other agent to assist hearing.
    2. Clipping of acoustic guitar.